When I have a box inside a box, if I colapse the child box, the parent box colapses as well.
I found this issue only after I upgraded from 2.3 to 2.4

In adminlte.js, the BoxWidget toggle method is called twice after clicking the collapse button of the child box. Child box triggers the toogle method for itself and also for parent box.
If you click the parent box collapse button, toggle method is only called once, and only the parent box is toogled.

I can't figure out why. It seams a simple fix if you can find the source of the problem.